A deformable object subject to such a pair of forces will naturally be stretched along the direction of the pull: in the case of the Earth, this “stretching” affects primarily the water in the oceans ...A deformable object subject to such a pair of forces will naturally be stretched along the direction of the pull: in the case of the Earth, this “stretching” affects primarily the water in the oceans that cover most of the surface, resulting in two “tidal bulges” that account for the well-known phenomenon of tides: as the earth rotates around its axis, each point on the surface passes through one of the bulges once a day, resulting in two high tides each day (and, in between, a comparatively lo…